Shift mechanism for agricultural implements.



PATENTEDOCT. 2 190?.

I P. MEAGHBR.

SHIFT MECHANISM FOR AGRIGULTURAL IMPLEMENTS;

APPLI OATIQH' FILED 52.1 2, 1904.

3 SELBETS-SEEET 1.

y'ffimget Q/ Midi/Z.

PATENTED 00%22319-99- L MEAGHER. SHIFT MECHANISM FDR AGRICULTURAL IMPLEMENTS,

' APYLIUATIOK FILED LANE, 1904.

3 SHEETS-SHEET 2.

. LQQ MI @E gg tion'.

-"rider-can control the shift mechanism with his feet,

PIEaRE ltIEAGHER, OF

RAOINE, WISCONSIN, lssrenon TO J. 1. CASE PLOW'WORKS, OF'

RAOlNE, WIsooNsIN, A CORPORATION.

snrr r mncrmmsm FOR' AGRICULTURAL mrr nmnirrs.

Specification of Letters Patent.

"Patented 22, 1907.

Application filed d'anuary 2, 1904. Serial 110,187,480.

:Ipart of this specification; a

The improvement relates to inechanis m by which the fground tools vof agricultural implements are shifted to and from operative position andby which the height of the ground-tool is adjusted when working posi The invention seeks to provide means by which the thus leaving both hands free for the management of the pended claims; I

team, and cgnsistsin the features of construction, combinations andarra-ngement of parts set forth in the following description, illustrated in the accompanying drawings and more particularly pointed out in the ap-' In the drawings Figure 1 is a sectional elevation of a corn planter with the improved mechanism applied thereto. Fig. 2 is a detail elevation of the shift mechanism shown in F g. 1 looking in the opposite d'irec;

\ tion. Fig, 3 is a plan viewof a sulkyplow with a modified' form of the improved shift mechanism applied thereto. ,Fig. 4 is a view in elevation of theiparts shown in Fig. Fig. 5 is a detail section on line 55 of Fig. 4. Fig. 6 is a detail view of parts shown in Fig=3.

In the form of the invention'shown'in Fig. 1, the machine frame'lO is mounted on suitable ground wheels 11 and is provided with upwardly extending brace-bars 1'2 and 13 which carries the rider's seat 14. The runner frame 15 is pivoted as at 16 t the forward end of themain frame and carries'the seed-can or hopper 17, seed discharge tube 18 and the ground tool or runner 19. The draft-tongue 20 is provided at its rear end with a piece 21 which is hinged to a bracket 22, fixed upon the rear of in the .form of the hand lever 25, pivoted upon .a

bracket 26 which is fixed to the brace-bar 13, and a cross-bar 27 of the frame. The shift-leverjsprovided with a forwardly extending arm 28 which'is yieldingly connected to thepiece 21 by meansofla-bolt 29 and a I cushion spring 30 surrounding the boltand, interposed between itshead and the piece. 21. By means of this e sa i n; fliesh fi my l i f l a d.

lower the ground tool orrunner to and from working position and for adjusting the working position thereof. a For holding the shift-lever in adjusted position, the

bracket 26 is provided with an arch-shaped rack-bar 31 concentric with the piv t of the shift-leveL' A latch 32 is mounted to slide t ough guides 33 upon theshift lever and is normally held into engagement w'jitllthe' teeth of the rack-bar 31 by means of a spring '34. A:

, small hand-lever 35 is pivoted to the upper end of the shift-lever 25 and is connected to the latch 32 bya rdd 36 so that the engagement of the latch with the teeth of the rack 31 may be controlled by hand.'- A heavy spring 37 is secured to the rear endof the rack bar. 31- and to a lug '38 upon the upper end of the shift-lever 25, so. as to balance the weight of the runner frame assists in raising'it. As shown, the sliding latch32 is" mounted upon the shift-lever 25 upon the upper side of the rack-bar 31. Attila-39 for releasing the latch is, I provided andis preferably connected irectly upon th shift-lever below the rack-bar 3-1, by means-of a pivot" the trip 39 and is prefegably formed in one piece there f with. Thetrip isprovided with a cam face 42, ay-

7 5 bolt 40; An actuatingfoot-treadle .41 is providedfor" ranged tov engage and lift the latch 32 out of engagement with the teeth of the rack 31 as the trip is shiftedi for wardly by pressure applied upon the 'foot-treadlefil,

,A stop43 on the trip at the end of the cam face, is air so as to move therewith the trip is always in position to release the latch 32 in all adjustments of the shift-lever.

By mounting the treadle 41 directly upon the shifter,

the rider may firstjrelease the latch 32 with his foot, and as soon as the stop 43 engages the end oithe latch, he may through the medium of the foot-treadl'e, shift therunner to the. ground against the tension of the liftspring 37. It will also be observed that therider may release the foot treadle 41 and trip39 at anydesired point so as to permit the reengagement of thelatch 32' the rack bar 31, which will then hold the runner" name and ground tool in the. desired position. The

rider may thus release the latch, shift the ground tool and effect the rengagement of the latch to hold ithe ground tool in adjusted position with his foot, leaving .both hands en' i ely free for guiding the team.- Preferably also, a second foot-treadle 44 is secured to the shift-lever 25 and extends rearwardly from the pivot thereof so that the rider. by exerting pressure upon the other treadle, the rider may have complete ntrol of anism by means of the hand-lever 25 int-he usual manner when he desires to do so.

The sulky plow illustrated in Figs. 3 to 6 inclusive, comprises a frame carried upon wheels 46 and upon which is journaled the crank-shaft 47 upon which are mounted the beams 48 and 49 of the ground tools or gang-plows 50. A shift-lever25 is fixed to the crankshaft 47 and serves to raise and lower the plows or ground tools to and from Working position and to ad just the same when in working position, as may be desired. The beams 48 and 49 are connected by bracerods 52 and 53 and the rearwardly extending plow beam 49 is connected at the rear to one of the arms of a bellcrank 54, which is journaled to the frame, as indicated. A connecting rod 55 extends'bctween the other arm of the bell-crank 54 and the shift-lever 25. A heavy liftpring 56 extends between the'crank portion of the shafts 47 and 'a bracket 57 fixed to the frame. The riders seat 58 is mounted to one side of the frame upon a laterally projecting portion 59, which forms, as shown the journalbox for the shaft 4'7. ".lhe hand-lever 25, as in the shift mechanism previously described, is provided with a sliding. latch 32', mounted to shift in guides 33 and normally held by a coiled spring 34' into engagement with the teeth of a rack-bar 31, fixed to the plow frame. So also the shift-loves: is provided with a pivoted release lever 35 connected to the latch by a rod 36.-

A trip 39 for releasing the latch 32, is pivotally connected by a bolt 40 to the shift-lever. This trip .is provided with a cam lace 42 for engaging the end of the latch 32 and shifting it out'of thejteeth of the rack 35 as it is shifted forward about its pivotfll. The trip is also provided With stops 43 arranged on opposite sides of theend of the latch 3-2 to. limit the relative movement of the trip upon the shift lever. The actuating treadle {i1 is, as showmpreferably formed in piece with the trip. By this arrangement in the manner previously described with reference to the form shown in Fig, l, the rider may with his foot, release the locking latch, shiftthe ground tools or plows to the ground and then look the shift mechanism tozhold the plows in any desired adjusted position, thus leaving bc:.-. hands free for the guidance of his team in going around obstructions, turning corners and the like. I

It is obvious that the improved shift mechanism may be readily adapted for controlling the ground tools-of other agricultural implements and that changes may be made in the detai...v oi slrmztnre without departure from theessentials of the invention. Y

Having describcd my invention, What I claim as new and desire to secure by Letters Patent, is:

1. In shift mechanism for agricultural implements, the comblnatlonawith aground tool, a shift-lever therefo -n latch-anti rack for holding said lever, of atripfor said latch pivoted to said shift-lever and provided with a'foottreadle and a stop for limiting the relatlve movement of said trip upon said lever.

2. In shift mechanism for agricultural implements, the combination with a ground tool and a shift-lever therefor,

combination with ground to" of :1 rack-bar on the machine frame, a spring-actuated, sliding latch mounted on'said lever on one side of said rack-bar and arranged to engage the some, a releasing trip for said latch pivoted to sulxl lever upon the other side of said rack-bur and a foot-trcadle mounted onsairl trip.

3. In shift mechanism for a .,ll(3ll1tl1lfll implements, the ir-lift-spring and a shifter therefor and a latch for said @hifter, of a foot-treadlc for tripping said latch and conne;ted to said shifter for moving said tool to the ground a;.,:.ins1: the t nsion o[ said liftspring. Y Y

4. In shift mechanism for agricultural implements, the Y combination with a. ground tool, a lift-spring and pivoted shift-lever therefor, of a rack on the frame, a latch for engaging said rack mounted on said lover, a trip for re leasing said latch mounted on said lever and provided with a stop for limiting its movement thereon and with a foot-' treadle arranged to actuate said trip and move the tool to the ground against the tension of said liitsprlng.

5. In shift mechanism for agricultural implements, the combination with a ground tool, a shifter therefor and a latch for said shifter, of a pair of foot-treadles connected to said shifter for raisingv and lowering said ground tool, one of said treadles being arranged to control said latch.

6. In shift mechanism for agricultural implements, the combination with. a ground tool, a shift-lever therefor, latch and rack for holding said lever, of a pair of fooltreadles connected to said lever for shifting the some in opposite directions.

, I. In shift mechanism for agricultural implements, the

combination with 'a ground tool, a shift-lever therefor, a

latch and rack for holding said lever, of a pair of foottrcadles connected to said, lever for shifting the same in opposite directions, one of said treadles being movably -mouuted upon said lever and urranged'to release said latch.

8. In shift mechanism for agricultural implements, the combinatlon'with a' ground tool, of a shift-lever therefor, a

cushion spring connection between said lever and said tool, a lift-spring connected to said lever and a latch and cooperating rack for holding said lever in adjusted position.

9. In shiftmechanism for agricultural implements, the combination with a ground tool, of a shift-lever therefor, a

cushion spring connection between said lever and said tool, a liftspring connected to said lever, a latch and cooperating raclr for holding said lever. a pair of foot-treadles connected to said lever for shifting the same in opposite directions, one of said treadles being movably mounted on said lever and arranged to trip said latch.

, 10. In an agricultural implement, the combination with the frame, riders seat and ground tool mounted to shift to and from workingposition, of shift mechanism comprising a lifting foot-lever pivotally mounted on the frame and azcndingmearwardly toward the riders seat, connectionbetween. said foot-lever and the ground tool, a latch -for said shift mechanism connected to said foot-lever, and a forwardly extending, depressing. foot-lever pivotally connected to said lifting foot-lever and having a slight shitt Y independent thereof to release said latch, substantially as described.

11. In an agricultural implement, the combination with the frame, rlders seat and ground tool mounted to shift to and from working position, of shift mechanism'comprislng a lifting foot-lever pivotally. mounted on the frame and extending rearwardly'towl d the rider's seat, an arm connected to' said foot-lever, a,l ink connccting said arm and the ground tool, a latch for said shift mechanism connected to said foot-lever and 's forwardly extending,'depressing foot-lever pivotallyconne'eted tc "id lifting foot-lever and hereof to release said having a. slight shiftiuu :pendent latch, substantiallvas described."

- PIERRE MEAGHER.

Witnesses I:

LAWRENCE SCHIBSBY, Gnome H. Bon'ron. 

